RU1787799C - Plant for preparation of concrete and mortar mixes - Google Patents

Abstract

Use: for the preparation of concrete and mortar in construction. SUBSTANCE: a multi-sectional hopper with a central support and rollers is mounted on the frame with the possibility of rotation around its axis. There is a conveyor for loading it. Concentric to the bunker, a circular monorail is mounted on which the roles of the bunker are based. Horizontal rails are attached under the hopper, on which two dispensers are connected by means of a trolley, the distance between their axes being equal to the distance between the discharge opening of the hopper and each of the two loading hoppers of the concrete mixer located below the dispensers. 8 ill.

Description

The invention relates to construction, and in particular to equipment for the preparation of concrete mixtures and mortars.

A device for preparing concrete is known, comprising a loading conveyor, alternately connected to supply hoppers of aggregate dispensers.

The disadvantages of the known device are low technological reliability, high metal consumption and large overall dimensions. The first of these drawbacks is due to the fact. that aggregate dispensers are located under the respective hoppers and connected to one loading conveyor. This creates in real conditions malfunctions of the dosing device due to the non-synchronous operation of these elements, causing the concrete mixing plant to stop.

The execution of each filler dosing chain separately requires the placement of a dispenser and silos, and above them a loading or distribution device. This entails an increase in size and metal consumption.

A known installation for the preparation of concrete and mortar mixtures, selected as a prototype, comprising a multi-section hopper for aggregates with a device for loading it, dispenser A is a concrete mixer with a loading funnel.

The disadvantage of this installation is its low productivity.

The purpose of the invention is to increase productivity.

This goal is achieved by the fact that the known installation for the preparation of concrete and mortar mixtures, containing a multi-section hopper for aggregates with a device for loading it, a batcher and a concrete mixer with a loading funnel, is equipped with an additional batcher, a circular monorail and guides, the hopper has a central support and rollers in contact with the monorail, and the concrete mixer with an additional loading funnel, with a circular monorail

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located concentrically to the hopper, and the latter is mounted for rotation around the vertical axis, the main and additional dispensers are interconnected and mounted on the cart with the possibility of horizontal movement along the rails, the distance between their axes being equal to the distance between the axis of the discharge opening of the hopper and the axis of each of the hoppers of the concrete mixer.

In Fig 1 is a longitudinal vertical section of the installation; FIG. 2 is a section AA in FIG. 1; in FIG. 3 is a section BB in FIG. 1; in FIG. 4 - node I in FIG. 1; in FIG. 5 is a transverse vertical section through the apparatus of FIG. 1; in FIG. 6 - node II in FIG. 1; in FIG. 7 - a chronogram (fragment) of the operation of the dispensing device, where it is reflected (solid line - production of rubble No. 1; intermittent

- production of crushed stone No. 2; dot-and-dash

- sand production No. 1, discontinuous with two points - sand N 2); in FIG. 8 is a graph illustrating the advantage of the proposed solution compared to sthototype, where I is the dependence of TC.z. from Ubun. for prototype; II - for the proposed solution,

A device for dispensing aggregates of a concrete-solver unit comprises a conveyor 1, an overlay 2, a multi-section hopper 3 mounted on a platform 4 inside a circular monorail 5, and a drive 6 for turning the platform around an axis. a central support 7, mounted above the discharge openings 8 of the sections of the hopper 3. Each section is equipped with a sector lock 9. Under the hopper, a prefabricated funnel is installed 10. Under the cover of the metering unit, the guide rails 11 with the trolley 12 are fixed. On the trolley, below the level of the guide rails, two twin dispensers 13 are mounted. The trolley 12 is equipped with rollers 14 and a cable reserve 15 with a drive 16, which allows shuttle movement between the loading hoppers 17 of the concrete mixer 18. The support 7 consists of a pin 18 and a pin 20. the distance between the axes of the dispensers 13 is equal to the distance between the axis of the discharge port of the hopper 8 and the axis of each of the hoppers 17.

Installation works as follows.

In the initial position, the aggregate hopper 3 is empty, one of the dispensers 13 is located under the funnel 10. The aggregate of a certain type and fraction is fed by a conveyor 1 to one of the sections of the hopper 3. After filling the corresponding section, the drive 6 is turned on, which moves

to the conveyor 1 next section. Drive 6 is turned off and it is loading. When rotating the platform 4 with an asymmetric loading of the hopper 3, the tipping

the moment is compensated by the reaction force moment arising on the support 7. This force from the pin 19 is transmitted through the pin 20 to the trim 2. This ensures that the load is balanced on the circular mono rail 5. After loading all sections of the hopper 3 in this sequence, the shutter opening mechanism 9 of the section with filler needed according to the technological sequence for

5 preparation of concrete or mortar. The filler is fed through the opening 8 and the funnel 10 into the dispenser 13 previously mounted under the funnel 10. The filler is dosed. At the end of dosing

0, the sector shutter of section 9 is closed. The drive 16 is turned on, which moves the trolley 12 with the filled dispenser 13 to the loading funnel 17. In this case, the rollers 14 are moved along the guides 11 by

5 of the cable storage 15. The dispenser unloading mechanism is then turned on and the material is discharged into the mixer 18. At the same time as the first dispenser is unloaded, the desired material is dispensed by the second dispenser. The drive 16 is turned on and the second dispenser is moved to the funnel 17. Then the cycle is repeated.

The production of aggregates from any section of the hopper 3 is carried out to stock,

5 necessary for 2-3 batches (controlled by the operator or the appropriate level sensor - not shown in the diagrams). After that, a command is issued to turn on the conveyor 1 to reload the corresponding

0 bunker. In this sending mode, further operation of the device occurs.

These operations are carried out at the command of the operator or automatically. In the event of failure of one of the extractors 13, the operation of the device is carried out on another dispenser.

Formula I; for acquiring a plant for preparing concrete and mortar mixtures, comprising a multi-section aggregate hopper with a loading device, a batcher and a concrete mixer with a loading funnel, characterized in that, in order to increase productivity, it

5 is equipped with an additional dispenser, a circular monorail and guides, a hopper with a central support and rollers in contact with the circular monorail, and a concrete mixer with an additional loading funnel, with a circular

the monorail is concentric to the bunker, and the latter is mounted for rotation around a vertical axis, the main and additional dispensers are interconnected and mounted on a trolley with the possibility of horizontal

reciprocating movement along the guides, the distance between the axes of the dispensers being equal to the distance between the axis of the discharge opening of the hopper and the axis of each of the hoppers of the concrete mixer.

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Editor

Compiled by A. Grebenkov

Tehred M. Morgenthal Corrector O. Kravtsova

Order 38Mintage Subscription

VNIIIPI of the State Committee for Inventions and Discoveries under the USSR SCST 113035, Moscow. J-35. Rauska nab .. 4/5

Production and Publishing Plant Patent, Uzhhorod, 101 Gagarin St.

T, 2.g, C